docs: def _describe_list(self) -> List[Tuple[str, float]]:
          """Return useful information about the graph as a list of tuples."""
          number_nodes = self.number_of_nodes()
          return [
              ('Number of Nodes', number_nodes),
              ('Number of Edges', self.number_of_edges()),
              ('Number of Citations', self.number_of_citations()),
              ('Number of Authors', self.number_of_authors()),
              ('Network Density', '{:.2E}'.format(nx.density(self))),
              ('Number of Components', nx.number_weakly_connected_components(self)),
              ('Number of Warnings', self.number_of_warnings()),
          ]